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stealth61 [152]
3 years ago
7

PLEASE HELP

Chemistry
1 answer:
antiseptic1488 [7]3 years ago
4 0
I’m pretty sure it’s D. Hope that helps! Correct me if I am wrong.
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What is the volume of 425g of ice if the density is 0.92g/mL
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Density=mass/ volume so you solve for volume and get 461.96 mL
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4 years ago
You are doing a peer review of a science experiment. The paper claims that an increase of pressure requires a greater addition o
Rus_ich [418]

This is true because as thermal energy increases, molecules move faster and liquids are turned into gas.

States of matter is determined by the amount of energy possessed by the particles. Particles of a solid has the least amount of energy, liquid particles have more energy than solid particles while gas particles possess the highest amount of energy.

To increase the pressure of a substance, greater thermal energy is added to the substance by heating it up. This heat causes the molecules of the liquid to become more energetic and move faster .

As this occurs, intermolecular forces between the substance is broken as the liquid is converted to gas. The pressure. The energetic gas particles collide faster with the walls of the container thereby increasing the pressure.

Learn more: brainly.com/question/18124975

3 0
2 years ago
How much heat energy is required to raise the temperature of 20 kilograms of water from 0°C to 35°C?
alexgriva [62]
The heat energy needed is 2928800J. Mass is given as 20 (kg)
7 0
3 years ago
In lab you reacted 60 grams of propane (C3H8) with 13 grams of oxygen gas (O2). Your
Andre45 [30]

Answer:

120g

Explanation:

Based on the reaction, when 1 mole of propane and 5 moles of oxygen react, 3 moles of CO2 and 4 moles of H2O are produced. The ratio of production is 3 moles of CO2 per 4 moles of H2O.

Thus, we need to convert mass of water to moles using its molar mass:

Moles H2O (Molar mass: 18g/mol):

63g H2O * (1mol / 18g) = 3.5 moles H2O

Converting to moles of CO2:

3.5 moles H2O * (3 moles CO2 / 4 moles H2O) = 2.625 moles CO2

Mass CO2 (Molar mass: 44g/mol):

2.625 moles CO2 * (44g / mol) = 115.5g of CO2 are released

<h3>120g </h3>

5 0
3 years ago
12. Gavin is having a difficult time
schepotkina [342]

Answer:

Friction

Explanation:

the resistance that one surface or object encounters when moving over another.

5 0
3 years ago
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